Ian Darian-Smith, Mary P. Galea, Corinna Darian-Smith, Michio Sugitani, Andrew Tan, Kathleen Burman

The Anatomy of Manual Dexterity (eBook, PDF)

The New Connectivity of the Primate Sensorimotor Thalamus and Cerebral Cortex

• Format: PDF

Produktbeschreibung

The macaque monkey uses the hand to grasp, digitally explore, and identify objects within reach, and to use them intelligently. This review is focused on the topography and connections of some of the neuron populations that determine this manual dexterity. Corticospinal, thalamocortical, and ipsilateral corticocortical neuron populations have been selected because of their obvious relevance to the use of the hand, and also because of their structural and functional interdependence. In the last decade these neuron populations have been analyzed using modern axon tracer techniques, single neuron recording in the alert monkey, and PET, resulting in a serious reconsideration of their structural and functional organization, and their roles in voluntary action. This review critically examines some of the new ideas triggered by these observations.

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Produktdetails

• Verlag: Springer Berlin Heidelberg
• Seitenzahl: 142
• Erscheinungstermin: 6. Dezember 2012
• Englisch
• ISBN-13: 9783642611612
• Artikelnr.: 53156214

Inhaltsangabe

1 Introduction.- 1.1 Purpose and Plan of This Review.- 1.2 Primate Manual Dexterity.- 2 Corticospinal Connections in the Primate.- 2.1 Introduction.- 2.2 New Methods.- 2.3 Direct Corticospinal Projections.- 2.4 Morphology of Corticospinal Neurons.- 2.5 Indirect Corticospinal Projections.- 2.6 Spinal Circuitry Mediating Supraspinal Control of Movement.- 2.7 Postnatal Maturation of Corticospinal Pathways.- 2.8 Comment.- 3 The Primate Sensorimotor Thalamus.- 3.1 The Thalamus and Sensorimotor Behavior.- 3.2 Architecture of the Dorsal Thalamus.- 3.3 Functional Groupings of Nuclei Within the Sensorimotor Thalamus.- 3.4 Thalamocortical Neuron Populations of the Sensorimotor Thalamus.- 3.5 Neuron Circuitry of Sensorimotor Thalamic Nuclei in the Macaque.- 3.6 The Pulvinar, Visually Directed Hand Movements, and Object Recognition.- 3.7 Comment.- 4 Sensorimotor Cortex.- 4.1 Introduction.- 4.2 Distribution of Visual Information in the Parietotemporal Cortex.- 4.3 Flow of Somatosensory Information in the Parietal Cortex in the Macaque.- 4.4 Visual Space, Tangible Space, and Their Neuronal Alignment.- 4.5 Connections Between Parietotemporal, Cingulate, and Prefrontal Cortex.- 4.6 Cortical Connections of Corticospinal Neuron Populations.- 5 Summary and Comments.- 6 References.- 7 Subject Index.